Definition: You are given a question on a random topic. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: What city is known as 'the rubber capital of the world'?
(A)Omaha Nebraska (B)Rockford Illinois (C)Grand Rapids Michigan (D)Akron Ohio

D